Home / 1,678,998.40-2,518,497.60-1,210,105.60

Finding the Fourth Proportional to 1,678,998.40, 2,518,497.60 and 1,210,105.60

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Solution

The fourth proportional to 1,678,998.40, 2,518,497.60 and 1,210,105.60 is: 1,815,158.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,998.40 : 2,518,497.60 = 1,210,105.60 : x
  2. Step 2: Convert to fraction form
    1,678,998.40/2,518,497.60 = 1,210,105.60/x
  3. Step 3: Cross multiply
    1,678,998.40x = 2,518,497.60 × 1,210,105.60
  4. Step 4: Simplify right side
    1,678,998.40x = 3,047,648,049,346.56
  5. Step 5: Solve for x
    x = 3,047,648,049,346.56/1,678,998.40
  6. Step 6: Final answer
    x = 1,815,158.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.